Avalon A1566I

261 TH/s at 4,500 watts. 17.2 J/TH, which is rank 80 of 126 in this comparison.

What this machine earns at your electricity price

Electricity price

cents per kWh

Net per day

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Break-even price

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Payback

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Further assumptions

Bitcoin price in euro

Pool fee in percent

Purchase price in euro

Waste heat replaces heating A miner in a living space heats it. Whatever gas or electricity you therefore do not buy counts against the power bill, but only in the months you would be heating anyway.

Network hashrate 973 EH/s ·

Household prices per Eurostat, 2. Halbjahr 2025, including all taxes and levies. Your own tariff may differ considerably; cheap switching offers often sit ten cents below. Just type yours in.

The break-even electricity price is the price per kilowatt-hour at which earnings exactly cover the power bill. Below it the machine earns, above it the machine burns money. In central Europe that is the number almost everything turns on.

The sum behind it

Earned per day–

Earned per day in euro–

Power used per day–

Power cost per day–

of which heat credit–

BTC per day = hashrate ÷ network hashrate × 144 blocks × 3.125 BTC × (1 − pool fee) Power cost = watts ÷ 1000 × 24 h × price per kWh Break-even = earnings in euro ÷ kilowatt-hours per day

Not included: connection, cooling, power-supply losses, downtime and maintenance. Water cooling adds the loop itself, hosting adds the slot fee. Network difficulty rises over the long run, which lowers earnings at the same hashrate; the payback figure uses today's values and is therefore on the optimistic side.

Specifications

ManufacturerCanaan

Hashrate261 TH/s

Power draw4,500 W

Efficiency17.2 J/TH

CoolingAir

Form factorStandalone unit

AlgorithmSHA-256

Price per terahash—

Market reference—

Assessment

Canaan's Avalon A1566I delivers 261 TH/s at 4,500 watts, so 17.2 J/TH, which puts it mid-field: rank 80 of 126. At 4,500 watts of connected load it belongs on a dedicated circuit, not a kitchen socket. Its closest neighbours are the WhatsMiner M60S+ at 17.2 J/TH above and the Antminer S21 at 17.8 J/TH below. The gap upwards is 0.0 J/TH; whether the premium for it is worth paying depends entirely on your electricity price. We hold no market reference for this model, so the price field above stays empty. Enter your own quote and payback appears beside it. Net per day and break-even do not need a price anyway.

Against machines of similar efficiency

Model	TH/s	J/TH	Net/day	Break-even	Price
WhatsMiner M63S+	428	17.0	–	–	—
WhatsMiner M66S+	318	17.0	–	–	—
Antminer S21e Hyd	310	17.0	–	–	—
WhatsMiner M61S+	216	17.0	–	–	—
WhatsMiner M6DS+	540	17.0	–	–	—
WhatsMiner M60S+	200	17.2	–	–	3,651 €
Avalon A1566I	261	17.2	–	–	—

All 126 models compared

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